diff --git a/RELEASE.md b/RELEASE.md
new file mode 100644
index 0000000..4410dd7
--- /dev/null
+++ b/RELEASE.md
@@ -0,0 +1,3 @@
+Release type: patch
+
+Restore missing `content` property to default item dictionary.
diff --git a/feedgenerator/django/utils/feedgenerator.py b/feedgenerator/django/utils/feedgenerator.py
index d04ec8a..8631ed0 100644
--- a/feedgenerator/django/utils/feedgenerator.py
+++ b/feedgenerator/django/utils/feedgenerator.py
@@ -178,6 +178,7 @@ def add_item(
         categories=(),
         item_copyright=None,
         ttl=None,
+        content=None,
         updateddate=None,
         enclosures=None,
         **kwargs,
@@ -197,6 +198,7 @@ def to_str(s):
                 "title": to_str(title),
                 "link": iri_to_uri(link),
                 "description": to_str(description),
+                "content": to_str(content),
                 "author_email": to_str(author_email),
                 "author_name": to_str(author_name),
                 "author_link": iri_to_uri(author_link),
diff --git a/tests/test_feedgenerator.py b/tests/test_feedgenerator.py
index 7845378..f3254d9 100644
--- a/tests/test_feedgenerator.py
+++ b/tests/test_feedgenerator.py
@@ -1,4 +1,5 @@
 import datetime
+from urllib.parse import quote
 from zoneinfo import ZoneInfo
 
 import pytest
@@ -27,6 +28,9 @@
     pubdate=NAIVE_DATE,
 )
 
+MINIMAL_FEED = {key: FIXT_FEED[key] for key in ("title", "link", "description")}
+MINIMAL_ITEM = {key: FIXT_ITEM[key] for key in ("title", "link", "description")}
+
 
 EXPECTED_RESULT_RSS = """<?xml version="1.0" encoding="utf-8"?>
 <rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Poynter E-Media Tidbits</title><link>http://www.poynter.org/column.asp?id=31</link><description>A group Weblog by the sharpest minds in online media/journalism/publishing.
@@ -162,3 +166,69 @@ def test_timezone_handling(generator, date, expected_date_string):
     result = feed.writeString(ENCODING)
 
     assert expected_date_string in result
+
+
+def test_feed_default_properties():
+    feed = feedgenerator.SyndicationFeed(**MINIMAL_FEED)
+
+    for key in ("title", "link", "description"):
+        assert feed.feed[key] == MINIMAL_FEED[key]
+
+    for key in (
+            "language",
+            "author_email",
+            "author_name",
+            "author_link",
+            "subtitle",
+            "categories",
+            "feed_url",
+            "feed_copyright",
+            "id",
+            "ttl",
+            "stylesheets",
+    ):
+        assert key in feed.feed
+
+    # Testing this after testing that the property exists
+    assert feed.feed["id"] == MINIMAL_FEED["link"]
+
+
+def test_item_default_properties():
+    feed = feedgenerator.SyndicationFeed(**MINIMAL_FEED)
+    feed.add_item(**MINIMAL_ITEM)
+
+    for key in ("title", "description"):
+        expected_value = MINIMAL_ITEM[key]
+        # The link in the test contains a multibyte character
+        if key == "link":
+            expected_value = quote(MINIMAL_ITEM[key], safe="/#%[]=:;$&()+,!?*@'~")
+        assert feed.items[0][key] == expected_value
+
+    for key in (
+            "content",
+            "author_email",
+            "author_name",
+            "author_link",
+            "pubdate",
+            "updateddate",
+            "comments",
+            "unique_id",
+            "unique_id_is_permalink",
+            "enclosures",
+            "categories",
+            "item_copyright",
+            "ttl",
+    ):
+        assert key in feed.items[0]
+
+
+def test_feed_kwargs():
+    feed = feedgenerator.SyndicationFeed(test="test", **FIXT_FEED)
+    assert "test" in feed.feed
+
+
+def test_item_kwargs():
+    feed = feedgenerator.SyndicationFeed(**FIXT_ITEM)
+    feed.add_item(test="test", **FIXT_ITEM)
+
+    assert "test" in feed.items[0]